Table type electric grinding machine

Abstract

The utility model relates to the technical field of grinding machines, and discloses a table type electric grinding machine which comprises a grinding machine body and a grinding wheel, a top fixing frame is fixedly connected to the top of a shell of the grinding machine body, and a grinding mechanism is arranged on the inner wall and the surface of the top fixing frame and comprises a connecting shaft, a rotating shaft and a rotating shaft. A connecting shaft is fixedly connected to the surface of the grinding wheel, a reciprocating lead screw is rotatably connected to the inner wall of the top fixing frame, the surface of the reciprocating lead screw is in transmission connection with the surface of the connecting shaft through a belt, the surface of the reciprocating lead screw is in threaded connection with the inner wall of a sliding block, and a gear is rotatably connected to the bottom of the sliding block. A rack is fixedly connected to the inner wall of the top fixing frame. According to the table type electric grinding machine, the grinding mechanism is arranged, the grinding machine is started, the grinding wheel rotates, the diamond grinding head reciprocates to perform reciprocating grinding on the surface of the grinding wheel, and the surface of the grinding wheel is kept flat.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a desktop electric grinding machine. Background Art

[0002] A grinding machine is a mechanical device used to grind and polish the surface of an object. Its main component is the grinding wheel, which is composed of abrasives and a binder. By rotating the grinding wheel, the material on the surface of the object can be ground down to achieve a flat and smooth effect.

[0003] The grinding wheel of the grinding machine will be worn during use, and the abrasive particles will gradually fall off. Due to the uneven wear during use, the surface of the grinding wheel will become uneven. Especially when processing workpieces with higher hardness, the uneven wear of the grinding wheel will be more obvious. The uneven wear of the grinding wheel will lead to an uneven wheel surface, making the grinding result inaccurate and the workpiece processing accuracy reduced. Utility Model Content

[0004] The purpose of the utility model is to provide a desktop electric grinder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desktop electric grinder, comprising a grinder and a grinding wheel, the grinder being a desktop electric grinder, a top fixing frame being fixedly connected to the top of the grinder housing, a grinding mechanism being arranged on the inner wall and the surface of the top fixing frame, the grinding mechanism comprising:

[0006] The gear is connected to the gear train by a toothed mechanism, and the toothed mechanism is connected to the gear train by a toothed mechanism, and the toothed mechanism is connected to the gear train by a toothed mechanism.

[0007] Preferably, an adjustment mechanism is provided on the surface of the top fixed frame, and the adjustment mechanism includes: a fixing plate, a fixing plate fixedly connected to the side of the top fixed frame, the inner wall of the fixing plate is rotatably connected to the top of the threaded rod, the bottom surface of the threaded rod is threadedly connected to the inner wall of the pressing piece, and the pressing piece is driven downward by rotating the threaded rod, and the pressing piece drives the connecting sleeve to move downward, and the connecting sleeve drives the spring 2 and the diamond grinding head to move downward, thereby adjusting the grinding length of the diamond grinding head.

[0008] Preferably, the surface of the sliding block is slidably connected to the inner wall of the top fixing frame, so that the sliding block slides left and right on the inner wall of the top fixing frame.

[0009] Preferably, the surface of the rack is meshed with the surface of the gear, and the inner wall of the connecting sleeve is slidably connected to the surface of the connecting rod. When the gear moves back and forth, it rotates under the action of the rack, and the gear drives the connecting rod, the connecting sleeve, and the diamond grinding head to move left and right while rotating, thereby avoiding the use of a fixed posture for grinding, causing the bottom surface of the diamond grinding head to become arc-shaped, and avoiding large vibrations and jitters of the diamond grinding head that affect grinding.

[0010] Preferably, the top inner wall of the diamond grinding head is slidably connected to the bottom of the connecting sleeve, so that the diamond grinding head can stably slide on the surface of the connecting sleeve.

[0011] Preferably, the surface of the pressing member is slidably connected to the inner wall of the top fixing frame, so that the pressing member can stably slide up and down on the inner wall of the top fixing frame.

[0012] Preferably, a grinding wheel is provided on the inner wall of the grinding machine to perform a grinding function.

[0013] Compared with the prior art, the utility model provides a desktop electric grinder, which has the following beneficial effects:

[0014] 1. The desktop electric grinder is provided with a grinding mechanism. When the grinder is turned on, the grinding wheel rotates, and the diamond grinding head reciprocates to grind the surface of the grinding wheel, so that the surface of the grinding wheel remains flat.

[0015] 2. The desktop electric grinder is equipped with a grinding mechanism. When the gear reciprocates, it rotates under the action of the rack. The gear drives the connecting rod, the connecting sleeve, and the diamond grinding head to move left and right while rotating, avoiding the use of a fixed posture for grinding, which causes the bottom surface of the diamond grinding head to become arc-shaped, and avoids large vibration and shaking of the diamond grinding head that affects grinding.

[0016] 3. The desktop electric grinder is provided with an adjustment mechanism. The threaded rod is rotated to drive the pressing piece to move downward, the pressing piece drives the connecting sleeve to move downward, the connecting sleeve drives the spring 2 and the diamond grinding head to move downward, thereby adjusting the grinding length of the diamond grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the front view of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the top fixing frame of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the grinding mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting sleeve of the utility model.

[0021] In the figure: 1. grinding machine; 2. grinding wheel; 3. top fixed frame; 4. grinding mechanism; 41. connecting shaft; 42. reciprocating screw; 43. belt; 44. sliding block; 45. gear; 46. rack; 47. connecting rod; 48. spring 1; 49. connecting sleeve; 410. spring 2; 411. diamond grinding head; 5. adjusting mechanism; 51. fixing plate; 52. threaded rod; 53. pressing piece. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a desktop electric grinder, comprising a grinder 1 and a grinding wheel 2, the grinder 1 is a desktop electric grinder 1, a top fixed frame 3 is fixedly connected to the top of the outer shell of the grinder 1, and a grinding mechanism 4 is arranged on the inner wall and surface of the top fixed frame 3, and the grinding mechanism 4 comprises: a connecting shaft 41, a reciprocating screw rod 42, a belt 43, a sliding block 44, a gear 45, a rack 46, a connecting rod 47, a spring 1 48, a connecting sleeve 49, a spring 2 410, and a diamond grinding head 411.

[0023] A connecting shaft 41 is fixedly connected to the surface of the grinding wheel 2, a reciprocating screw rod 42 is rotatably connected to the inner wall of the top fixed frame 3, the surface of the reciprocating screw rod 42 is connected to the surface of the connecting shaft 41 through a belt 43, the surface of the reciprocating screw rod 42 is threadedly connected to the inner wall of the sliding block 44, the bottom of the sliding block 44 is rotatably connected to a gear 45, a rack 46 is fixedly connected to the inner wall of the top fixed frame 3, a connecting rod 47 is fixedly connected to the bottom of the gear 45, one end of a spring 48 is fixedly connected to the bottom of the connecting rod 47, the other end of the spring 48 is fixedly connected to the inner wall of a connecting sleeve 49, and the bottom of the connecting sleeve 49 is fixedly connected to the inner wall of the connecting sleeve 49. The top of the top fixed frame 3 is fixedly connected to one end of a spring 2 410, and the other end of the spring 2 410 is fixedly connected to a diamond grinding head 411. When the grinding machine 1 is turned on, the grinding wheel 2 rotates, and the grinding wheel 2 drives the connecting shaft 41 to rotate. The connecting shaft 41 drives the reciprocating screw 42 to rotate through the belt 43. The reciprocating screw 42 drives the sliding block 44 to slide back and forth on the inner wall of the top fixed frame 3. The sliding block 44 drives the gear 45, the connecting rod 47, the connecting sleeve 49, and the diamond grinding head 411 to reciprocate left and right. The spring 1 48 and the spring 2 410 play a connecting role. The reciprocating movement of the diamond grinding head 411 has an impact on the grinding wheel 2. The surface is reciprocated and polished, so that the surface of the grinding wheel 2 remains flat, the surface of the sliding block 44 is slidably connected to the inner wall of the top fixed frame 3, so that the sliding block 44 slides left and right on the inner wall of the top fixed frame 3, the surface of the rack 46 is meshed with the surface of the gear 45, and the inner wall of the connecting sleeve 49 is slidably connected to the surface of the connecting rod 47. When the gear 45 reciprocates, it rotates under the action of the rack 46, and the gear 45 drives the connecting rod 47, the connecting sleeve 49, and the diamond grinding head 411 to move left and right while rotating, so as to avoid using a fixed posture for grinding, which causes the bottom surface of the diamond grinding head 411 to become an arc shape, and the bottom The contact area between the arc-shaped diamond grinding head 411 and the grinding wheel 2 will increase, causing the diamond grinding head 411 to produce greater vibration and shaking, affecting the grinding. Therefore, this design makes the grinding of various parts of the bottom surface of the diamond grinding head 411 more uniform. The bottom of the diamond grinding head 411 is flat, which avoids the diamond grinding head 411 from producing greater vibration and shaking, affecting the grinding. The top inner wall of the diamond grinding head 411 is slidably connected to the bottom of the connecting sleeve 49, so that the diamond grinding head 411 can slide stably on the surface of the connecting sleeve 49. A grinding wheel 2 is arranged on the inner wall of the grinding machine 1, which plays a role in grinding.

[0024] An adjustment mechanism 5 is arranged on the surface of the top fixed frame 3, and the adjustment mechanism 5 comprises: a fixing plate 51, and the side surface of the top fixed frame 3 is fixedly connected with the fixing plate 51, the inner wall of the fixing plate 51 is rotatably connected to the top of the threaded rod 52, and the bottom surface of the threaded rod 52 is threadedly connected to the inner wall of the pressing piece 53, and the rotating threaded rod 52 drives the pressing piece 53 to move downward, and the pressing piece 53 drives the connecting sleeve 49 to move downward, and the connecting sleeve 49 drives the spring 2 410 and the diamond grinding head 411 to move downward, so as to adjust the grinding length of the diamond grinding head 411, and the surface of the pressing piece 53 is slidably connected to the inner wall of the top fixed frame 3, so that the pressing piece 53 can stably slide up and down on the inner wall of the top fixed frame 3.

[0025] Based on the above embodiment, the grinding machine 1 is turned on to rotate the grinding wheel 2, and the grinding wheel 2 drives the connecting shaft 41 to rotate. The connecting shaft 41 drives the reciprocating screw 42 to rotate through the belt 43. The reciprocating screw 42 drives the sliding block 44 to slide back and forth on the inner wall of the top fixed frame 3. The sliding block 44 drives the gear 45, the connecting rod 47, the connecting sleeve 49, and the diamond grinding head 411 to move back and forth. The spring 1 48 and the spring 2 410 play a connecting role. The diamond grinding head 411 reciprocates to grind the surface of the grinding wheel 2 back and forth, so that the surface of the grinding wheel 2 remains flat.

[0026] When the gear 45 moves back and forth, it rotates under the action of the rack 46, and the gear 45 drives the connecting rod 47, the connecting sleeve 49, and the diamond grinding head 411 to move left and right while rotating, avoiding the use of a fixed posture for grinding, which causes the bottom surface of the diamond grinding head 411 to become arc-shaped. The contact area between the bottom arc-shaped diamond grinding head 411 and the grinding wheel 2 will increase, causing the diamond grinding head 411 to produce greater vibration and shaking to affect the grinding. Therefore, this design makes the grinding of various parts of the bottom surface of the diamond grinding head 411 more uniform, and the bottom of the diamond grinding head 411 is flat, which avoids the diamond grinding head 411 from producing greater vibration and shaking to affect the grinding.

[0027] Rotating the threaded rod 52 drives the pressing piece 53 to move downward, the pressing piece 53 drives the connecting sleeve 49 to move downward, and the connecting sleeve 49 drives the spring 2 410 and the diamond grinding head 411 to move downward, thereby adjusting the grinding length of the diamond grinding head 411.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A desktop electric grinding machine, comprising a grinding machine (1) and a grinding wheel (2), characterized in that: A top fixing frame (3) is fixedly connected to the top of the housing of the grinding machine (1), and a grinding mechanism (4) is arranged on the inner wall and surface of the top fixing frame (3), wherein the grinding mechanism (4) comprises: A connecting shaft (41) is fixedly connected to the surface of the grinding wheel (2); a reciprocating screw rod (42) is rotatably connected to the inner wall of the top fixed frame (3); the surface of the reciprocating screw rod (42) is connected to the surface of the connecting shaft (41) by a belt (43); the surface of the reciprocating screw rod (42) is threadedly connected to the inner wall of a sliding block (44); the bottom of the sliding block (44) is rotatably connected to a gear (45); a rack (46) is fixedly connected to the inner wall of the top fixed frame (3); a connecting rod (47) is fixedly connected to the bottom of the gear (45); the bottom of the connecting rod (47) is fixedly connected to one end of a spring 1 (48); the other end of the spring 1 (48) is fixedly connected to the inner wall of a connecting sleeve (49); the bottom of the connecting sleeve (49) is fixedly connected to one end of a spring 2 (410); the other end of the spring 2 (410) is fixedly connected to a diamond grinding head (411).

2. A desktop electric grinder according to claim 1, characterized in that: An adjustment mechanism (5) is provided on the surface of the top fixing frame (3), and the adjustment mechanism (5) comprises: a fixing plate (51), the fixing plate (51) is fixedly connected to the side surface of the top fixing frame (3), the inner wall of the fixing plate (51) is rotatably connected to the top of the threaded rod (52), and the bottom surface of the threaded rod (52) is threadedly connected to the inner wall of the pressing piece (53).

3. A desktop electric grinder according to claim 1, characterized in that: The surface of the sliding block (44) is slidably connected to the inner wall of the top fixed frame (3).

4. A desktop electric grinder according to claim 1, characterized in that: The surface of the rack (46) meshes with the surface of the gear (45), and the inner wall of the connecting sleeve (49) is slidably connected with the surface of the connecting rod (47).

5. A desktop electric grinder according to claim 1, characterized in that: The top inner wall of the diamond grinding head (411) is slidably connected to the bottom of the connecting sleeve (49).

6. A desktop electric grinder according to claim 2, characterized in that: The surface of the pressing member (53) is slidably connected to the inner wall of the top fixing frame (3).

7. A desktop electric grinder according to claim 1, characterized in that: A grinding wheel (2) is arranged on the inner wall of the grinding machine (1).

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